Poor service and bad attitude

Went to have a beer and meal with a friend. I order hake and chips with a side order of calamari . The food comes but instead of hake its yellow tail. I dont particularly like yellow tail but told the waiter that I would take it anyway but ask if the 5 tiny calamari tubes on the plate is supposed to be the side order for and additional 56 rand . I get told yes this is the side order . I ask to speak the the manager who comes over who tells me yes this is it and it what evrrybody gets . I tells this rude obnoxious manager that im not happy with this so he says ok we will take it away and we will NEVER serve you food again ?? what kind of attitude is this ? I will never go back to this pub again .